Propelling and steering apparatus.



N0; 628,010. Patented July 4, I899. I. LEHMAN. PROPELLING AND STEERINGAPPARATUS (Application filed Nov. 19, 1898.)

(No Model.)

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. UNITED STATES PATENT OFFICE.-

ISADOR LEHMAN, OF CLEVELAND, OHIO.

PROPELLING AND STEERING APPARATUS. I

SPECIFICATION forming part of Letters Patent No. 628,010, dated July 4:,1899.

Application filed November 19, 1898. derial No. 696,860. (No model.)

To to whom, it may concern.-

Be it known that I, ISADOR LEHMAN, residing at Cleveland, county ofOuyahoga, and State of Ohio, have invented certain new and usefulImprovements in Propelling and Steering Apparatus; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itpertains to make and use the same.

My invention, relates to combined propellers and steering apparatus forboats,vessels, and the like, and more especially to such class ofinventions wherein the propeller rotates within a non-rotatable cylinderor casing.

My invention consists in securing the nonrotatable cylinder or casin gat the stern of the boat in such a manner that the same may be moved oroscillated in a horizontal direction and at the same time allowing ofthe free rotation of the propeller therein by connecting said propellerto the shaft of the boat by means of a universal-joint connection.

My invention also consists in other peculiarities of construction,whichwill be hereinafter fully set forth and claimed.

In the drawings, Figure I is a view in elevation of a side of a boat,showing my combined propeller and steering apparatus attached. Fig. IIis a sectional view illustrating more clearly the details ofconstruction of the universal and slip joint connection between thepropeller-shaft and the main shaft of the engine. Fig. III is a planView illustrating one mannerin which the propeller and steeringapparatus may be oscillated or turned horizontally or kept inpredetermined position, as desired.

A represents a boat of any suitable construction, to the rear or sternof which is secured a propeller-casing B of suitable diameter to receivea propeller C and allow the same to freely revolve therein. The casing Bis preferably provided with a band B, which acts to reinforce the casingB and afford a support for the same. Atthe upper portion of the band B ashaft 19 is.provided,which is secured to said band in any suitablemanner and extends upward through the stern of the boat, supporting thecasing B and pivoting the same in position.-

To the upper end of the shaft 12 is secured boat. ploy the pinion D atthe upper end of the any suitable means, such as a pinion D, foroperating the casing B with its propeller O for the purpose of-turningthe same in either direction, and thus directing or steering the Asillustrated in Fig. III, when I emshaft 1) I may also provide'a suitablesegmental rack E,which meshes with said pinion. The rack E is suitablypivoted or secured to the boat so as to be freely oscillated, thusrotating the pinion D, shaft 19, casing B, and propeller 0. However, asheretofore set forth, the apparatus for oscillating or moving thecylinder B and its contained propeller 0 may be modified and anysuitable means employed, such as are well known to the craft.

In order to allow of the free horizontal oscillation of the propeller Oand at the same time revolve the same in the desired direction by meansof connecting it to the main shaft of the engine F, I have provided auniversal joint, which I prefer to construct as illustrated more clearlyin Fig. II of the draw.

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G represents the shaft upon which the propeller O is mounted, asillustrated in Fig. II,

and by means of which it is directly rotated in either direction. To theinner end of the shaft D is secured a universal-joint connection H,which allows of the bending or'knuckling of said shaft in any and alldirections relative to the axis of the same; but inasmuch as theoscillation of the casingB and its contained propeller O about itspivotal point 17 would alter the length of said shaft according to theposition it occupied I have provided a slip-coupling J, which is sosecured to both or either shafts F or H that while it prevents theslipping of said shaft around the axes of the same and communicatesrotary motion from one to the other it will allow of the lengthening ofsaid connection between the main shaft F and the propeller-shaft G, thusrotat ing the propellerO in predetermined direction regardless of theposition it may occupy. The universal-joint connection H and theslip-coupling .I may, however, be constructed in any well-knownoperative manner or form well known, providing they allow of the freeoscillation in a horizontal direction of the casing B and its propellerO and at the same time rotate said propeller within said casing.

I have also shown in the drawings, Figs. I and II, a peculiarconstruction of propeller; but I do not wish to be limited to thisconstruction, inasmuch as it may be modified without departing from myinvention, it only being essential that the propeller should be inclosedwithin a casing, such as B, so as to freely rotate therein, and thatsaid casing B and propeller rotating therein be secured to the stern ofthe boat in such a manner that the casin g B, with its propeller G, willoscillate horizontally to control the direction of the boat, and whilebeing oscillated will freely rotate to propel the boat.

Other modifications may be made in my invention without departing fromthe gist of the same.

What I claim is- 1. Acombined propelling and steering apparatus,comprising a casing which is nonrotatable around its horizontal axis,but free to movein a horizontal direction, and means for moving it insaid horizontal direction, and a rotating propeller mounted within saidcasing; said propellerbeing provided with a universal-joint connectionwhereby the propeller and casing may be moved in a horizontal direction,substantially as set forth.

both propeller and easing horizontally, substantially as set forth.

4. The combination in a propelling and steering device of the type setforth; of a rotating propeller; a casing within which said propeller ismounted and rotated; universaljoint connection between the driving-shaftof said propeller and the propeller, and means for horizontallydirecting or turning both casing and propeller, substantially as setforth. Signed by me, at Cleveland, Ohio, this 2d day of November, 1898.

' ISADOR LEI-IMAN.

Witnesses: W. E. DONNELLY,

A. H. PARRA'IT.

